sourcegit/src/UI/DiffViewer.xaml

<UserControl x:Class="SourceGit.UI.DiffViewer"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             mc:Ignorable="d" 
             FontFamily="Consolas">
    <Border BorderThickness="1" BorderBrush="{StaticResource Brush.Border2}">
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="26"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>

            <Border Grid.Row="0" BorderBrush="{StaticResource Brush.Border2}" BorderThickness="0,0,0,1">
                <Grid Margin="8,4">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition Width="*"/>
                    </Grid.ColumnDefinitions>

                    <StackPanel Grid.Column="0" x:Name="orgFileNamePanel" Orientation="Horizontal">
                        <Path Width="10" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.File}"/>
                        <TextBlock x:Name="orgFileName" Margin="4,0,0,0" VerticalAlignment="Center" Foreground="{StaticResource Brush.FG}"/>
                        <TextBlock Margin="8,0" VerticalAlignment="Center" Text="→" Foreground="{StaticResource Brush.FG}"/>
                    </StackPanel>

                    <StackPanel Grid.Column="1" Orientation="Horizontal">
                        <Path Width="10" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.File}"/>
                        <TextBlock x:Name="fileName" Margin="4,0" VerticalAlignment="Center" Foreground="{StaticResource Brush.FG}"/>
                        <Path x:Name="loading" Width="10" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.Loading}"/>
                    </StackPanel>

                    <StackPanel Grid.Column="2" x:Name="diffNavigation" Orientation="Horizontal" HorizontalAlignment="Right">
                        <Button Width="26" Click="Go2Next" ToolTip="Next Difference" Background="Transparent">
                            <Path Width="10" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.MoveDown}"/>
                        </Button>

                        <Button Click="Go2Prev" ToolTip="Previous Difference" Background="Transparent">
                            <Path Width="10" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.MoveUp}"/>
                        </Button>
                    </StackPanel>
                </Grid>
            </Border>

            <Grid x:Name="textChange" Grid.Row="1" ClipToBounds="True">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*" MinWidth="100"/>
                    <ColumnDefinition Width="2"/>
                    <ColumnDefinition Width="*" MinWidth="100"/>
                </Grid.ColumnDefinitions>

                <Grid Grid.Column="0">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition Width="1"/>
                        <ColumnDefinition Width="*"/>
                    </Grid.ColumnDefinitions>

                    <TextBox
                        x:Name="leftLineNumber"
                        Grid.Column="0"
                        AcceptsReturn="True"
                        AcceptsTab="True"
                        BorderThickness="0"
                        Background="Transparent"
                        IsReadOnly="True"
                        Padding="2,0"
                        Margin="0"
                        FontSize="13"
                        HorizontalContentAlignment="Right"
                        VerticalAlignment="Stretch"/>

                    <Rectangle Grid.Column="1" Width="1" Fill="{StaticResource Brush.Border2}"/>

                    <RichTextBox
                        x:Name="leftText"
                        Grid.Column="2"
                        AcceptsReturn="True"
                        AcceptsTab="True"
                        IsReadOnly="True"
                        BorderThickness="0"
                        Background="Transparent"
                        Foreground="{StaticResource Brush.FG}"
                        Height="Auto"
                        FontSize="13"
                        HorizontalScrollBarVisibility="Auto"
                        VerticalScrollBarVisibility="Auto"
                        RenderOptions.ClearTypeHint="Enabled"
                        ScrollViewer.ScrollChanged="OnViewerScroll"
                        PreviewMouseWheel="OnViewerMouseWheel"
                        SizeChanged="LeftSizeChanged"
                        SelectionChanged="OnViewerSelectionChanged"
                        HorizontalAlignment="Stretch"
                        VerticalAlignment="Stretch">
                        <RichTextBox.Document>
                            <FlowDocument PageWidth="0"/>
                        </RichTextBox.Document>
                        <RichTextBox.ContextMenu>
                            <ContextMenu>
                                <MenuItem Command="ApplicationCommands.Copy"/>
                            </ContextMenu>
                        </RichTextBox.ContextMenu>
                    </RichTextBox>
                </Grid>

                <GridSplitter Grid.Column="1" Width="1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Background="{StaticResource Brush.Border2}"/>

                <Grid Grid.Column="2">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto"/>
                        <ColumnDefinition Width="1"/>
                        <ColumnDefinition Width="*"/>
                    </Grid.ColumnDefinitions>

                    <TextBox
                        x:Name="rightLineNumber"
                        Grid.Column="0"
                        AcceptsReturn="True"
                        AcceptsTab="True"
                        IsReadOnly="True"
                        BorderThickness="0"
                        Background="Transparent"
                        Padding="2,0"
                        Margin="0"
                        FontSize="13"
                        HorizontalContentAlignment="Right"
                        VerticalAlignment="Stretch"/>

                    <Rectangle Grid.Column="1" Width="1" Fill="{StaticResource Brush.Border2}"/>

                    <RichTextBox
                        x:Name="rightText"
                        Grid.Column="2"
                        AcceptsReturn="True"
                        AcceptsTab="True"
                        IsReadOnly="True"
                        BorderThickness="0"
                        Background="Transparent"
                        Foreground="{StaticResource Brush.FG}"
                        Height="Auto"
                        FontSize="13"
                        HorizontalScrollBarVisibility="Auto"
                        VerticalScrollBarVisibility="Auto"
                        RenderOptions.ClearTypeHint="Enabled"
                        ScrollViewer.ScrollChanged="OnViewerScroll"
                        PreviewMouseWheel="OnViewerMouseWheel"
                        SizeChanged="RightSizeChanged"
                        SelectionChanged="OnViewerSelectionChanged"
                        HorizontalAlignment="Stretch"
                        VerticalAlignment="Stretch">
                        <RichTextBox.Document>
                            <FlowDocument PageWidth="0"/>
                        </RichTextBox.Document>
                        <RichTextBox.ContextMenu>
                            <ContextMenu>
                                <MenuItem Command="ApplicationCommands.Copy"/>
                            </ContextMenu>
                        </RichTextBox.ContextMenu>
                    </RichTextBox>
                </Grid>
            </Grid>

            <Border x:Name="sizeChange" Grid.Row="1" ClipToBounds="True" Background="{StaticResource Brush.BG3}" Visibility="Collapsed">
                <StackPanel Orientation="Vertical" VerticalAlignment="Center">
                    <Label Content="BINARY DIFF" Margin="0,0,0,32" FontSize="18" FontWeight="UltraBold" Foreground="{StaticResource Brush.FG2}" HorizontalAlignment="Center"/>
                    <Path Width="64" Height="64" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.Binary}" Fill="{StaticResource Brush.FG2}"/>
                    <Grid Margin="0,16,0,0" HorizontalAlignment="Center" TextElement.FontSize="18" TextElement.FontWeight="UltraBold">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="32"/>
                            <RowDefinition Height="32"/>
                        </Grid.RowDefinitions>
                        
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="64"/>
                            <ColumnDefinition Width="Auto"/>
                        </Grid.ColumnDefinitions>

                        <Label Grid.Row="0" Grid.Column="0" Content="OLD :" Foreground="{StaticResource Brush.FG2}"/>
                        <Label Grid.Row="0" Grid.Column="1" x:Name="txtOldSize" Foreground="{StaticResource Brush.FG2}" HorizontalAlignment="Right"/>
                        <Label Grid.Row="1" Grid.Column="0" Content="NEW :" Foreground="{StaticResource Brush.FG2}"/>
                        <Label Grid.Row="1" Grid.Column="1" x:Name="txtNewSize" Foreground="{StaticResource Brush.FG2}" HorizontalAlignment="Right"/>
                    </Grid>
                </StackPanel>
            </Border>

            <Border x:Name="noChange" Grid.Row="1" Background="{StaticResource Brush.BG3}" Visibility="Collapsed">
                <StackPanel Orientation="Vertical" VerticalAlignment="Center" Opacity=".2">
                    <Path Width="64" Height="64" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.Check}"/>
                    <Label Margin="0,8,0,0" Content="NO CHANGES OR ONLY EOL CHANGES" FontSize="18" FontWeight="UltraBold" HorizontalAlignment="Center"/>
                </StackPanel>
            </Border>

            <Border x:Name="mask" Grid.RowSpan="2" Background="{StaticResource Brush.BG3}" Visibility="Collapsed">
                <StackPanel Orientation="Vertical" VerticalAlignment="Center" Opacity=".2">
                    <Path Width="64" Height="64" Style="{StaticResource Style.Icon}" Data="{StaticResource Icon.Diff}"/>
                    <Label Margin="0,8,0,0" Content="SELECT FILE TO VIEW CHANGES" FontSize="18" FontWeight="UltraBold" HorizontalAlignment="Center"/>
                </StackPanel>
            </Border>
        </Grid>
    </Border>
</UserControl>